Finding the Fourth Proportional to 161,828.15, 242,869.32 and 112,257.09
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Solution
The fourth proportional to 161,828.15, 242,869.32 and 112,257.09 is: 168,473.80
Step by Step Solution
- Step 1: Write the proportion equation
161,828.15 : 242,869.32 = 112,257.09 : x - Step 2: Convert to fraction form
161,828.15/242,869.32 = 112,257.09/x - Step 3: Cross multiply
161,828.15x = 242,869.32 × 112,257.09 - Step 4: Simplify right side
161,828.15x = 27,263,803,113.48 - Step 5: Solve for x
x = 27,263,803,113.48/161,828.15 - Step 6: Final answer
x = 168,473.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.